13992969 has 4 divisors (see below), whose sum is σ = 18657296. Its totient is φ = 9328644.

The previous prime is 13992959. The next prime is 13992977. The reversal of 13992969 is 96929931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13992969 - 2⁷ = 13992841 is a prime.

It is a super-2 number, since 2×13992969² = 391606362869922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13992959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2332159 + ... + 2332164.

It is an arithmetic number, because the mean of its divisors is an integer number (4664324).

Almost surely, 2^13992969 is an apocalyptic number.

It is an amenable number.

13992969 is a deficient number, since it is larger than the sum of its proper divisors (4664327).

13992969 is an equidigital number, since it uses as much as digits as its factorization.

13992969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664326.

The product of its digits is 236196, while the sum is 48.

The square root of 13992969 is about 3740.7177118836. The cubic root of 13992969 is about 240.9738727322.

The spelling of 13992969 in words is "thirteen million, nine hundred ninety-two thousand, nine hundred sixty-nine".